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Title: Reconciling the CAST and PVLAS Results

Abstract

The PVLAS experiment has recently claimed evidence for an axionlike particle in the milli-electron-volt mass range with a coupling to two photons that appears to be in contradiction with the negative results of the CAST experiment searching for solar axions. The simple axion interpretation of these two experimental results is therefore untenable and it has posed a challenge for theory. We propose a possible way to reconcile these two results by postulating the existence of an ultralight pseudoscalar particle interacting with two photons and a scalar boson and the existence of a low scale phase transition in the theory.

Authors:
 [1];  [2]
  1. Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)
  2. Department of Physics, University of Florida, Gainesville, Florida 32611 (United States)
Publication Date:
OSTI Identifier:
20955405
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevLett.98.050402; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AXIONS; MASS; MILLI EV RANGE; PARTICLE IDENTIFICATION; PHASE TRANSFORMATIONS; PHOTONS

Citation Formats

Mohapatra, R. N., and Nasri, Salah. Reconciling the CAST and PVLAS Results. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.050402.
Mohapatra, R. N., & Nasri, Salah. Reconciling the CAST and PVLAS Results. United States. doi:10.1103/PHYSREVLETT.98.050402.
Mohapatra, R. N., and Nasri, Salah. Fri . "Reconciling the CAST and PVLAS Results". United States. doi:10.1103/PHYSREVLETT.98.050402.
@article{osti_20955405,
title = {Reconciling the CAST and PVLAS Results},
author = {Mohapatra, R. N. and Nasri, Salah},
abstractNote = {The PVLAS experiment has recently claimed evidence for an axionlike particle in the milli-electron-volt mass range with a coupling to two photons that appears to be in contradiction with the negative results of the CAST experiment searching for solar axions. The simple axion interpretation of these two experimental results is therefore untenable and it has posed a challenge for theory. We propose a possible way to reconcile these two results by postulating the existence of an ultralight pseudoscalar particle interacting with two photons and a scalar boson and the existence of a low scale phase transition in the theory.},
doi = {10.1103/PHYSREVLETT.98.050402},
journal = {Physical Review Letters},
number = 5,
volume = 98,
place = {United States},
year = {Fri Feb 02 00:00:00 EST 2007},
month = {Fri Feb 02 00:00:00 EST 2007}
}